How do I share state across processes in Python?

Sharing state across processes in Python can be accomplished using several mechanisms, such as multiprocessing modules, shared memory, or specialized libraries. Below are some techniques for implementing inter-process communication (IPC) and shared state.

Keywords: multiprocessing, shared state, inter-process communication, Python, memory sharing
Description: Learn how to share state across processes in Python using various methods, including multiprocessing and shared memory solutions. This guide provides examples and explanations.
        from multiprocessing import Process, Value

        # Function to modify shared state
        def increment_shared_value(shared_value):
            for _ in range(100):
                shared_value.value += 1

        if __name__ == '__main__':
            # Create a shared integer
            shared_value = Value('i', 0)

            # Start multiple processes
            processes = [Process(target=increment_shared_value, args=(shared_value,)) for _ in range(4)]
            for p in processes:
                p.start()
            for p in processes:
                p.join()

            # Print the final value
            print(f'Shared Value: {shared_value.value}')
        

Keywords: multiprocessing shared state inter-process communication Python memory sharing